Recent questions tagged q1

Binny read a boo. She read 40 pages on first day 30 pages on second day, third day she did not read. On fourth and fifth day she completed 60 pages together. If she finishes the book in a week which was 780 pages how many was left over to her to read.

asked Oct 19, 2017 by priyanka.c

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Boron has two isotopes $_5B^{10}$ and $_5B^{11}$. If atomic weight of Boron is 100.81 then ratio of $_5B^{10}$ to $_5B^{11}$ in nature will be :

asked Oct 8, 2017 by priyanka.c

1 answer

A potentiometer is an accurate and versatile device to make elechical measurements of E.M.F. because the method involves :

asked Oct 7, 2017 by meena.p

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What is the probability of rolling a 3 on a 6 sided dice, and getting a different number on each die

asked Oct 2, 2017 by priyanka.c

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Find out the number of days from $5^{th}$ December 2012 to $10^{th}$ January 2013?

asked Sep 25, 2017 by priyanka.c

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Find the missing number from the following sequence <br>1,2,4,7,......,33

asked Sep 20, 2017 by priyanka.c

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How many straight lines are there in the given figure

asked Sep 18, 2017 by priyanka.c

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There was shop which had different sized teddy bears. Small sized costed Rs 50. Medium sized costed Rs 120 and the large ones costed Rs 250. Tinu had Rs 720. He bought 5 small ones, 3 big ones and 4 medium ones. How much more money does he need to buy all these?

asked Sep 1, 2017 by priyanka.c

1 answer

Which of the following is the smallest fraction $\frac{3}{5} \; \frac{1}{2} \; \frac{2}{3} \;\frac{4}{7} \; \frac{3}{8}$

asked Aug 31, 2017 by priyanka.c

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There is 25 cm long rope. It is cut into two equal halves of each 12.5 cm, out of which one half is cut into further half but not equal half. One half measures 4.3 What is the other rope's measurement? Find the answer in fraction

asked Aug 14, 2017 by priyanka.c

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If $L=6, M=12, N=?, O=24, P=30$. Find the value of N and solve the expression $L \times M + M \times N$

asked Aug 4, 2017 by priyanka.c

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One third of a number is greater than one fourth of its successor by 1. Find the number

asked Aug 4, 2017 by priyanka.c

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A small candle 2.5 cm in size is placed 27 cm in front of a concave mirror of radius of curvature 36 cm. At what distance from the mirror should a screen be placed in order to receive a sharp image ? Describe the nature and size of the image ?

asked Feb 10, 2016 by meena.p

1 answer

A circular coil of wire consisting of 100 times of radius $8.0\;cm$ carries a current of $0.40\;A$ What is the magnitude of the magnetic field B at the center of the coil ?

asked Jul 22, 2015 by meena.p

1 answer

A vector needs three quantities for its specification . Name the three independent quantities conventionally used to specify the earth's magnetic field ?

asked Jul 9, 2015 by meena.p

1 answer

A steady current flows in a metallic conductor of non- uniform cross section. Which of these quantities is constant along the conductor ?

asked Jun 29, 2015 by meena.p

1 answer

Define the term electric dipole moment . Is it a scalar or a vector quantity ?

asked Apr 21, 2015 by meena.p

1 answer

1.23g of sodium hydroxide (molar mass =40) are dissolved in water and the solution is made to $100cm^3$.Calculate the molarity of solution.

asked Aug 6, 2014 by sreemathi.v

1 answer

Solve the inequality : $ 2 \leq 3x-4 \leq 5$

asked Aug 1, 2014 by meena.p

1 answer

Which of the following is not the mineral of iron ?

asked Jul 31, 2014 by thanvigandhi_1

1 answer

A sample of crystalline solid scatters a beam of X-rays of wavelength 70.93pm at an angle $2\theta$ of $14.66^{\large\circ}$.If this is a second order reflection (n=2),calculate the distance between the parallel planes of atoms from which the scattered beam appears to have been reflected.

asked Jul 31, 2014 by sreemathi.v

1 answer

Solve the following system of inequalities graphically $ x \geq 3, y \geq 2$

asked Jul 30, 2014 by meena.p

1 answer

Solve the given inequality in two-dimensional plane . $x+y < 5$

asked Jul 28, 2014 by meena.p

1 answer

Solve $24 x < 100$ when (i) x is a natural number (ii) x is an integer

asked Jul 25, 2014 by meena.p

1 answer

Which of the following elements does not belong to Group 13 of the periodic table ?

asked Jul 24, 2014 by thanvigandhi_1

1 answer

If a parabolic reflector is 20 cm in diameter and 5 cm deep, find the focus.

asked Jul 23, 2014 by thanvigandhi_1

1 answer

Rewrite the the statement " $If\: a\:natural\:number\:is\:odd,\: then\:its\:square\:is\:also\:odd."$ in five different ways conveying the same meaning.

asked Jul 21, 2014 by rvidyagovindarajan_1

1 answer

Find the coordinates of the foci and the vertices, the eccentricity and the length of the latus rectum of the hyperbolas : $ \large\frac{x^2}{16}-\large\frac{y^2}{9}=1$

asked Jul 19, 2014 by thanvigandhi_1

1 answer

Find the coordinates of the foci, the vertices, the length of major axis, the minor axis, the eccentricity and the length of the latus rectum of the ellipse : $ \large\frac{x^2}{36}$$+\large\frac{y^2}{16}$$=1$

asked Jul 15, 2014 by thanvigandhi_1

1 answer

Find the coordinates of the focus, axis of the parabola, the equation of the directrix and the length of the latus rectum for the following : $ y^2=12x$

asked Jul 14, 2014 by thanvigandhi_1

1 answer

Find the equation of the circle with centre (0,2) and radius 2

asked Jul 11, 2014 by thanvigandhi_1

1 answer

If the letters of the word ALGORITHM are arranged at random in a row what is the probability the letters GOR must remain together as a unit ?

asked Jul 7, 2014 by sreemathi.v

1 answer

Find the mean deviation about the mean of the distribution

asked Jul 2, 2014 by meena.p

1 answer

The mean and variance of eight observation are $9$ and $9.25$ respectively.If six of the observations are $6,7,10,12,12$ and $13$. Find the remaining two observations.

asked Jul 1, 2014 by meena.p

1 answer

Find the equation of the straight line which passes through the point (1, – 2) and cuts off equal intercepts from axes

asked Jun 30, 2014 by thanvigandhi_1

1 answer

From the data given below state which group is more variable A or B?

asked Jun 30, 2014 by meena.p

1 answer

Which of the following can not be valid assignment of probabilities for outcomes of sample space $S=\{\omega 1,\omega 2,\omega 3,\omega 4,\omega 5,\omega 6,\omega 7\}$

asked Jun 30, 2014 by sreemathi.v

1 answer

A die is rolled.Let E be the event "die shows 4" anf F be the event "die shows even number".Are E and F mutually exclusive?

asked Jun 27, 2014 by sreemathi.v

1 answer

Find the mean and variance for each of the data : $6,7,10,12,12,4,8,12$

asked Jun 26, 2014 by meena.p

1 answer

Describe the sample space for the indicated experiment : A coin is tossed three times

asked Jun 26, 2014 by sreemathi.v

1 answer

The middle term in the expansion of $\big(x+\large\frac{1}{x}\big)^{10}$ is

asked Jun 25, 2014 by sreemathi.v

1 answer

Find the mean deviation about the mean for the data $4,7,8,9,10,12,13,17$

asked Jun 25, 2014 by meena.p

1 answer

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